downkyi/DownKyi/Themes/Styles/StyleBtn.xaml

<ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:DownKyi.Themes.Styles">

    <Style x:Key="BtnStyle" TargetType="{x:Type Button}">
        <Setter Property="OverridesDefaultStyle" Value="True" />
        <Setter Property="Cursor" Value="Hand" />
        <Setter Property="Background" Value="Transparent" />
        <Setter Property="BorderThickness" Value="0" />
        <Setter Property="BorderBrush" Value="{x:Null}" />

        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type Button}">
                    <Border
                        Padding="10,5"
                        Background="{TemplateBinding Background}"
                        BorderBrush="{TemplateBinding BorderBrush}"
                        BorderThickness="{TemplateBinding BorderThickness}"
                        CornerRadius="5">
                        <ContentPresenter
                            Name="content"
                            HorizontalAlignment="Center"
                            VerticalAlignment="Center" />
                    </Border>

                    <ControlTemplate.Triggers>
                        <Trigger Property="IsMouseOver" Value="True">
                            <Setter Property="Background" Value="{DynamicResource BrushPrimaryTranslucent}" />
                        </Trigger>
                        <Trigger Property="IsMouseOver" Value="False">
                            <Setter Property="Background" Value="{DynamicResource BrushPrimary}" />
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

    <Style x:Key="BtnBorderStyle" TargetType="{x:Type Button}">
        <Setter Property="OverridesDefaultStyle" Value="True" />
        <Setter Property="Cursor" Value="Hand" />
        <Setter Property="Background" Value="{DynamicResource BrushBackground}" />
        <Setter Property="BorderThickness" Value="1" />
        <Setter Property="BorderBrush" Value="{x:Null}" />

        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type Button}">
                    <Border
                        Padding="10,5"
                        Background="{TemplateBinding Background}"
                        BorderBrush="{DynamicResource BrushPrimary}"
                        BorderThickness="{TemplateBinding BorderThickness}"
                        CornerRadius="5">
                        <ContentPresenter
                            Name="content"
                            HorizontalAlignment="Center"
                            VerticalAlignment="Center" />
                    </Border>

                    <ControlTemplate.Triggers>
                        <Trigger Property="IsMouseOver" Value="True">
                            <Setter Property="Background" Value="{DynamicResource BrushPrimaryTranslucent3}" />
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

</ResourceDictionary>